car is dragging in rear

the shocks or struts in the rear of your car are no good, replace

needs new sruts in back

This car has air springs. The air suspension system has a fault. It does NOT have to be faulty springs, though. It can be a compressor, drier, solenoids, or height sensor issue as well. A test needs to be done to check out the system for failures. Good luck! Shocks will do absolutely nothing to help you. And this vehicle does not have struts.